Sampling Methods

Interview every 10th student who enters the school in the morning.

• simple random

• quota

• systematic

• stratified

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected.

• systematic

• simple random

• opportunity

• self - selected (volunteer)

Political webpages often allow readers to rate (if they want to) whether they strongly agree, agree, disagree, or strongly disagree with the President's decision on any given situation. This is a form of:

• Self-selected Sampling

• Opportunity Sampling

• Simple Random Sampling

• Systematic Sampling

Marianne wanted to know students' opinions on the new schedule at school. She surveys the first 30 students who come into her class.

• Opportunity Sampling

• Systematic Sampling

• Simple Random Sampling

• Stratified Sampling

A ___ is a portion of the population used to gather data from.

• Systematic Sampling Method
• Sample
• Population
• Bias

A ___ is a group that includes everything being studied.

• Sample
• Sampling Method

• Population
• Sampling Fraction

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She picks the student in every 5th seat. What type of sample is this?

• Simple Random

• Systematic

• Self-Selected

• Opportunity

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She selects the five closest to her desk. What type of sample is this?

• Simple Random

• Self Selected

• Opportunity

• Systematic

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She selects the first five who raise their hands. What type of sample is this?

• Systematic

• Quota

• Self-Selected

• Simple Random

Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.
This is a form of:

• Simple Random Sample
• Stratified Random Sample
• Self-Selected Sample

• Systematic Sample